Correct accessibility values (#219)
Correct accessibility values (#219)

`aria-valuemin` is not where the current value should go, `aria-valuenow` is. This is causing problems where screen readers are reading out incorrect percentages as negative values. (see https://www.w3.org/TR/wai-aria-1.1/#progressbar for more info)
crisbeto/angular-svg-round-progressbar,crisbeto/angular-svg-round-progressbar